Step 1: Gather supplies

- colored felt (pick colors so you can have light on dark or dark on light to be able to see the pieces better)
- Glue
- Cardstock (alternatively you can use 3x5 index cards, but they will be less like a book and be more susceptible to damage from wear)
- A cutting tool, straightedge and cutting board for cutting the paper and cardstock (I used a pocketknife for the cardstock and the instructions. You can use other cutting tools as available.)
- Scissors (to cut the felt)
- Wide colored tape (I have blue duct tape)
- Instructions for the game you want to include (optional)

It's good to see ancient games being resurrected - I make card versions of Hnefatafl and Nine-Men's Morris for my classes to play at the end of the school year.
(For those wishing to look for more information, Hnefatafl translates as "King's Table")

I definitely had fun designing this and doing the research.
Thanks for the comments.

Fun idea! Looks small.

Thanks! The design is easily adjusted to be whatever size you want. This size was arrived at by thinking of something that would easily fit into a pocket, but there's no reason you couldn't make a larger version for a different game.
I found some instructions for a Vulcan chess game that I nearly made. While it would have fit on this board, a larger one would have been better.
If you make one, let me know!